CVE-2022-20623 — Cisco Nx-os vulnerability

CWE-3994 documents4 sources
Severity
7.5HIGHNVD
CNA8.6
EPSS
13.1%
top 5.87%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Cisco Nx-osCisco Nx-os Software
Timeline
PublishedFeb 23
Latest updateFeb 24

Description

A vulnerability in the rate limiter for Bidirectional Forwarding Detection (BFD) traffic of Cisco NX-OS Software for Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to cause BFD traffic to be dropped on an affected device. This vulnerability is due to a logic error in the BFD rate limiter functionality. An attacker could exploit this vulnerability by sending a crafted stream of traffic through the device. A successful exploit could allow the attacker to cause BFD…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶NVDcisco/nx-os7.0\(3\)i6\(2\) — 7.0\(3\)i7\(3\)+2

🔴Vulnerability Details

2
GHSA
GHSA-p4xm-j739-93q3: A vulnerability in the rate limiter for Bidirectional Forwarding Detection (BFD) traffic of Cisco NX-OS Software for Cisco Nexus 9000 Series Switches↗2022-02-24
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CVEList
Cisco Nexus 9000 Series Switches Bidirectional Forwarding Detection Denial of Service Vulnerability↗2022-02-23
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📋Vendor Advisories

1
Cisco
Cisco Nexus 9000 Series Switches Bidirectional Forwarding Detection Denial of Service Vulnerability↗2022-02-23
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CVE-2022-20623 — Cisco Nx-os vulnerability | cvebase